Vulnerability Details : CVE-2018-19824
In the Linux kernel through 4.19.6, a local user could exploit a use-after-free in the ALSA driver by supplying a malicious USB Sound device (with zero interfaces) that is mishandled in usb_audio_probe in sound/usb/card.c.
Vulnerability category: Memory Corruption
Products affected by CVE-2018-19824
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-19824
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 8 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-19824
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
NIST | |
7.8
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2018-19824
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-19824
-
https://usn.ubuntu.com/3933-1/
USN-3933-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://bugzilla.suse.com/show_bug.cgi?id=1118152
Bug 1118152 – VUL-0: CVE-2018-19824: kernel: alsa: UAF write in usb_audio_probeIssue Tracking;Patch;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
[SECURITY] [DLA 1731-2] linux regression updateMailing List;Third Party Advisory
-
https://usn.ubuntu.com/3930-1/
USN-3930-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://usn.ubuntu.com/3931-1/
USN-3931-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
-
http://www.securityfocus.com/bid/106109
Linux Kernel CVE-2018-19824 Use After Free Arbitrary Code Execution VulnerabilityThird Party Advisory;VDB Entry
-
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html
[SECURITY] [DLA 1731-1] linux security updateMailing List;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html
[SECURITY] [DLA 1771-1] linux-4.9 security updateMailing List;Third Party Advisory
-
https://usn.ubuntu.com/3931-2/
USN-3931-2: Linux kernel (HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://usn.ubuntu.com/3879-2/
USN-3879-2: Linux kernel (Xenial HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://usn.ubuntu.com/3879-1/
USN-3879-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
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https://access.redhat.com/errata/RHSA-2019:2703
RHSA-2019:2703 - Security Advisory - Red Hat Customer Portal
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https://support.f5.com/csp/article/K98155950
Third Party Advisory
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https://github.com/torvalds/linux/commit/5f8cf712582617d523120df67d392059eaf2fc4b
ALSA: usb-audio: Fix UAF decrement if card has no live interfaces in … · torvalds/linux@5f8cf71 · GitHubPatch;Vendor Advisory
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https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/commit/?id=5f8cf712582617d523120df67d392059eaf2fc4b
kernel/git/tiwai/sound.git - Sound sub-system treePatch;Vendor Advisory
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https://usn.ubuntu.com/3930-2/
USN-3930-2: Linux kernel (HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://usn.ubuntu.com/3933-2/
USN-3933-2: Linux kernel (Trusty HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
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